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from abc import ABC
from abc import abstractmethod

from aiq.retriever.models import RetrieverOutput


class AIQRetriever(ABC):
    """
    Abstract interface for interacting with data stores.

    A Retriever is resposible for retrieving data from a configured data store.

    Implemntations may integrate with vector stores or other indexing backends that allow for text-based search.
    """

    @abstractmethod
    async def search(self, query: str, **kwargs) -> RetrieverOutput:
        """
        Retireve max(top_k) items from the data store based on vector similarity search (implementation dependent).

        """
        raise NotImplementedError
